In the sky, there is sound. You have got experience. In the fire there is sound, in the air there is sound, in the earth there is sound, (taps) every metal, wood. You take everything, there is sound. So Brahman means all-pervading.
But this transcendental sound . . . just like your radio message, television sound, they cannot go beyond this earthly planet, utmost. But there is sound which can penetrate the whole universe and go to the spiritual world. Sound is all-pervading, that is a fact, scientific fact. If that sound is potent, then it can penetrate even this material sky and go to the spiritual sky and go to Kṛṣṇa directly. That sound is Hare Kṛṣṇa.
Golokera prema-dhana, hari-nāma-saṅkīrtana, rati nā janmilo mora tāya (Iṣṭa Deve Vijñapti 2). I've given that . . . he has translated very nice, Hayagrīva. Golokera prema-dhana. This is descended from the spiritual platform, Goloka Vṛndāvana, hari-nāma-saṅkīrtana, this Hare Kṛṣṇa. Rati nā janmilo kene tāya: "I have no attachment for these things." I have got attachment for radio sound or television sound, so many sound, but I have no attachment for the supreme sound, which is coming down from the Goloka Vṛndāvana.